Operating instructions

Part number 550-141-887/0800
3
AHE Series 4 Direct Vent Wall-Mounted Boilers — Boiler Manual
Please read before proceeding
Installer
Read all instructions before
installing. Follow all instructions in
proper order to prevent personal
injury or death.
• Consider piping and installation when determining
boiler location.
• Any claims for damage or shortage in shipment
must be filed immediately against the
transportation company by the consignee.
User
• This manual is for use only by your qualified
heating installer/service technician.
• Please refer to the User’s Information Manual for
your reference.
• We recommend regular service by a qualified
service technician, at least annually.
When calling or writing about the boiler— Please have the boiler model number from the
boiler rating label and the CP number from the boiler jacket. You may list the CP number in
the space provided on the Installation and service certificate found on page 21.
Failure to adhere to the guidelines on this page can result in severe personal injury, death
or substantial property damage.
When servicing boiler —
• To avoid electric shock, disconnect electrical supply before performing maintenance.
• To avoid severe burns, allow boiler to cool before performing maintenance.
Boiler operation —
• Do not block flow of combustion or ventilation air to boiler.
• Should overheating occur or gas supply fail to shut off, do not turn off or disconnect electrical supply to
circulator. Instead, shut off the gas supply at a location external to the appliance.
• Do not use this boiler if any part has been under water. Immediately call a qualified service technician to
inspect the boiler and to replace any part of the control system and any gas control that has been under
water.
Boiler water —
• Do not use petroleum-based cleaning or sealing compounds in boiler system. Water seal deterioration
will occur, causing leakage between sections. This can result in substantial property damage.
• Do not use "homemade cures" or "boiler patent medicines". Serious damage to boiler, personnel and/or
property may result.
• Continual fresh makeup water will reduce boiler life. Mineral buildup in sections reduces heat transfer,
overheats cast iron, and causes section failure. Addition of oxygen and other gases can cause internal
corrosion. Leaks in boiler or piping must be repaired at once to prevent makeup water.
• Do not add cold water to hot boiler. Thermal shock can cause sections to crack.
Glycol — potential fire hazard —
All glycol is flammable when exposed to high temperatures. If glycol is allowed to accumulate in or around
the boiler or any other potential ignition source, a fire can develop. In order to prevent potential severe
personal injury, death or substantial property damage from fire and/or structural damage:
• Never store glycol of any kind near the boiler or any potential ignition source.
• Monitor and inspect the system and boiler regularly for leakage. Repair any leaks immediately to prevent
possible accumulation of glycol.
• Never use automotive antifreeze or ethylene glycol in the system. Using these glycols can lead to hazardous
leakage of glycol in the boiler system.
Carbon monoxide detectors — Canada only
Installers must follow local regulations with respect to the installation of CO detectors and follow the
manufacturer’s stated maintenance schedule for this boiler.